1385467925 has 6 divisors (see below), whose sum is σ = 1717980258. Its totient is φ = 1108374320.

The previous prime is 1385467879. The next prime is 1385467933. The reversal of 1385467925 is 5297645831.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 258791569 + 1126676356 = 16087^2 + 33566^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1385467925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27709334 + ... + 27709383.

It is an arithmetic number, because the mean of its divisors is an integer number (286330043).

Almost surely, 2^1385467925 is an apocalyptic number.

It is an amenable number.

1385467925 is a deficient number, since it is larger than the sum of its proper divisors (332512333).

1385467925 is an equidigital number, since it uses as much as digits as its factorization.

1385467925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55418727 (or 55418722 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The square root of 1385467925 is about 37221.8742811267. The cubic root of 1385467925 is about 1114.8047879606.

The spelling of 1385467925 in words is "one billion, three hundred eighty-five million, four hundred sixty-seven thousand, nine hundred twenty-five".